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General Science Objective Questions and Answers for Competitive Exams

51 Diphtheria is a caused by a particular germ causing sorethroat and it results is:
A loosness of bowels
B Throttling
C Loss of memory
D Suffocation

Answer: Option [D]
52 Normally the pulse rate of a healthy body is:
A The same as the vein beat
B The same as the rate of heart beat
C Slower than heart beat
D Faster than heart beat

Answer: Option [B]


53 Sleeping under the trees at night is harmful but not during day time - why ?
A Tree gives out harmful gasses at night
B Tree may not fall
C During day time they liberate O2 and during night CO2
D During night time they liberate carbon-dioxide

Answer: Option [C]
54 Vitamins are natural substances present in various food stuffs and are used to:
A Purify the blood
B Cure deficiency disease
C Repair the tissue
D Give heat and energy

Answer: Option [B]
55 Of the following, the only metal that is produced directly from its ore by an elecrtical process is:
A Aluminium
B Copper
C Zirconium
D Steel

Answer: Option [A]


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